Peace research first emerged as an explicit academic area of study in the 1950s. Pioneers of peace research included Wright, Richardson and Lenz, and this book examines their contribution and that of the 'frontiersmen' who developed the study further, establishing peace research in its own right. Assessing the evolution, status and significance of peace research after fifty years, this novel and comprehensive book is relevant not only to students of peace research, but also to the developing debates within international relations and security studies. This is where there are real problems associated with the understanding of new problems and issues by reference to traditional concepts and categories. The book will attract a broad market in the fields of international relations, politics and social theory, as well as scholars in peace studies.